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10-27-2014, 09:05 PM | #23 | |
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Also interesting that the German forum members got this to work over a year ago. Pretty cool.
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10-27-2014, 09:26 PM | #24 |
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Very cool. Its great to see that members are finally getting the full bells and whistle while modding 35is.
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11-09-2014, 05:16 AM | #25 | ||
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Wedge is already pushing 20PSI out of stock turbos. Overboost can't magically increase boost when the turbos are at their limit. |
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11-11-2014, 08:51 PM | #26 | |
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It's just using the function that was ignored for previous aftermarket tunes. Just check out the other thread that I posted..
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GC LITES / BQ TUNE / MHD / FUEL IT BT ECA / WALBRO 525 LPFP / KW V3 / E9X M3 CONTROL ARMS / TURNER REAR CAMBER ARMS / RE BUSHINGS / H&R SWAYS / LUXON STRUTBAR / VRSF 7.5" FMIC / ER CP / TIAL BOV / VTT IN/OUTLETS / AFE PRO5R INTAKE / AR C.L. DP / BMS OCC / RB PVC / CF LIP + SIDE + SPOILER + DIFFUSER / IND REFLECTORS / BLK GRILLS / STUBBY / PB BBK / Forgestar F14 F: 19x9 et35 R: 19x10 et38/ Michelin PSS F: 245/35/19 R: 275/30/19
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11-12-2014, 04:03 AM | #27 | ||
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Basically the 335i and 335is have the same tuning potential. You can flash a 335i with 335is ROM and it will get overboost. It's just not something you really want. It's a bit like Turbo mode on intel processors. Just disable it and clock the processor up to it's stable max. I doubt the Godzilla flash that BuraQ is producing uses overboost at all. All wedge was saying is that they can now manipulate overboost parameters. |
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11-13-2014, 08:13 AM | #28 | |
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"Overboost does one primary thing, it adds to Load target which adds more boost and other things. It is more effective in the low-mid end power range. I can dictate how much boost/Load I can add "extra" per gear, similar to what a piggyback can do, by using the overboost table. Adding too much "extra" load/boost useing the overboost table than "necessary" can lead to performance instability. It has to be tuned for balance. All N54B30TO cars that are tuned by us the overboost table is utilized in some way or another. So yes my Godzilla map does utilize the overboost table Lets say I used the main Load Target table to target 160 in a certain RPM range, that gives me 13-14 PSI. I can an add an additional 20 Load in the overboost table to give me 180 load (gross) to bump boost, and other things, up to about 17-18 PSI in the specificied RPM range." There you have it. Overboost does increase load of regular boost, and it was used on Godzilla. Good news, don't you agree? |
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11-13-2014, 08:54 AM | #29 | ||
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All the overboost function is doing is making your car target a lower value when it's not active. You can set the load as high as you like but there's only so much boost the turbo can produce. The maximum load is the same between both the i and is. |
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11-13-2014, 07:32 PM | #30 | |
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Overboost has a timer which is said to be 7 seconds. Its a period of time that the "Overboost" table is active adding more Load to produce more boost. Here is what the stock overboost table on the IS looks like: Here is the Load Target table also from the IS: Now that this is out of the way lets take a look at the "non" N54B30TO tables ie Non 1M, 335is, Z435is As you can see they have completely different values. The N54B30 overboost table is null, the table is useless, it doesnt work on other than the 1M, 335is, and the Z435is ie the N54B30TO cars Using a custom map that was "originally" tuned for a N54B30 yes will work on a N54B30TO car, but the Overboost table is "disabled" so no overboost, and also borrowed PID's that do not work "optimal" with the N54B30TO. If the tuner was to activated the table with the current N54B30 calibrations their will be instability in the system. They would have to recalibrate PIDs and load target in which many are not going to do. The 7 second activation is not subjected to a WOT session it is subjected to an over the base target "instance" which means I can hit overboost multiple times through out all gears and the time will reset when actual load falls below Load target (base) As you can see we can dictate what gears to apply different amount of "added" load which will give and increase or decrease amount of boost. This table is indeed active on our godzilla map but we use it in a different way for demanding and controlling boost. Eventhough the N54B30 and the N54B30TO share the same engine, the software and DME version is what sets them remotely apart with two different animal characteristics. Last edited by BQTuning; 11-13-2014 at 07:49 PM.. |
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11-14-2014, 01:08 AM | #31 | ||
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If more power was able to be extracted from the is ROM then people would flash their cars with the _IS version of their ROM then begin tuning that. |
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11-15-2014, 03:13 AM | #33 | |
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If you flash the ROM with the _IS version then you will get that extra calculation. The use of overboost in the map is not the reason the power figures are high. Wedge has a 335i not an is and he's the one putting down record power numbers. The power figures are high on those maps because they are aggressive maps. |
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11-15-2014, 03:21 PM | #35 | |
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Here is a perfect example of overboost on my car, you will not find another N54 running http://datazap.me/u/wedgeperformance...ta=1-2-3-12-14 Now compare to other logs of cars on stock turbos, and tell us what you see is the difference in the logs Edit: Btw you cannot flash a N54B30TO ROM on a N54B30 car, its already been tried and failed. Last edited by BQTuning; 11-15-2014 at 03:31 PM.. |
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11-15-2014, 03:46 PM | #36 | |
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http://www.e90post.com/forums/member.php?u=219172
About WedgePerformance Car '07 e92 AT Sport Montego Blue Quote:
They are very pretty logs though. I have Wedge added as a favourite on DataZap because of that. Always reassuring to compare my logs against you and Wedge's logs to see if I'm heading in the right direction. Your car shreds drive shafts because of a combination of abuse and the harsh engagement of DCT. If you had a slushbox you would have less pretty logs but less downtime getting that shaft fixed. Last edited by CarAbuser; 11-15-2014 at 04:06 PM.. |
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11-16-2014, 01:22 AM | #37 | ||
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The logging tool is the COBB AP v3. WGDC Adder is what increases boost along with Load target. WGDC cealing is exactly that, but can be used in many ways to manipulate WGDC adder or boost Our entire method of controlling boost is dependant on multiple tables not just PIDs whihc yes is the core Not only does overboost "add" to the load base it helps to sustain "load" longer with a less drop rate = holding more boost up top via load without having to contribute much to the WGDC adder. So the DME is averaging out the load. Now if you look at my partners log on his non IS car whom his pushing 15% more boost than I am but I am hold more boost up top than he is a perfect example of the avdantages of having overboost enabled Quote:
http://datazap.me/u/wedgeperformance...data=2-3-16-18 The key to all this is properly tuned PIDs. No I would never tune a customer's car like we do our own cars running blind on boost unless they are 100% aware of it and request it. We know how much boost is running blind and compensated on the fuel for it, just an FYI. You should give us a try in tuning your car, it will be a started for you. Also our maps are "unlocked" and we will teach you how to use them based on request. Ive made it that simple, took me over a year to get them down packed. Last edited by BQTuning; 11-16-2014 at 01:30 AM.. |
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11-16-2014, 01:36 AM | #38 |
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Here is an FYI, so people dont end up guessing of what we are doing.
We have stock turbos pushing 23 PSI, not just on the dyno but its street drivable (log posted above) Is it healthy NO, is it fun, hell yea it is. Do we care umm if we did we wouldnt be pushing north of 20 PSI . You got to pay to play. |
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11-16-2014, 04:05 AM | #39 | |
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I was talking to Wedge a while ago about it. I don't have a CobbAP and you don't create maps in TunerPro. V8Bait and DesertDude gave me some tips for creating my own map based on Shiv's old template files as no companies at the time were tuning the INA0S ROM. |
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11-16-2014, 11:40 AM | #40 | |
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For us N54B30TO owners we have multiple tables in ATR for Load maniplulation, whereas on N54B30 cars you only have one unless you are using TunerPro, and the logic between TP vs ATR do not agree in logic terms on tuning also. I think the problem here is you cannot compare TP logic with ATR logic vise versa on this platform. |
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11-16-2014, 01:53 PM | #41 | |
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How does a N54B30TO car with a load target of 160 + 30 from the overboost table (190 total) sustain a higher actual load figure than a N54B30 car with a load target of 190? As I see it the overboost function is just adding to your load setpoint and not actually allowing the car to achieve a higher actual load. Since the actual hardware in the IS model is identical to the standard model I don't see how you could get any more power out of the engine. The exhaust is slightly different but I believe that is only for sound purposes and there's no difference in flow. |
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11-16-2014, 06:28 PM | #42 | |
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